An XDG Desktop Portal (later called XDP) is a program that lets other
applications communicate swiftly with the compositor through D-Bus.

It's used for stuff like e.g. opening file pickers, screen sharing.

On Wayland, it also requires an implementation. For Hyprland,
you'd usually use `xdg-desktop-portal-wlr` (later called XDPW)

Unfortunately, due to various reasons the -wlr portal is inferior
to the KDE or Gnome ones.

In order to bridge the gap, Hyprland has its own fork of XDPW that
has more features, called [xdg-desktop-portal-hyprland](https://github.com/hyprwm/xdg-desktop-portal-hyprland).
(later called XDPH)

{{< hint type=important >}}
You don't **need** XDPH. Hyprland will work with XDPW, but XDPH has more features, like e.g.
window sharing.

XDPH will work on other wlroots-based compositors, although limited to the XDPW features (other
will be disabled)
{{< /hint >}}

## Installing
{{< tabs "uniqueid" >}}

{{< tab "Arch Linux" >}}
```plain
pacman -S xdg-desktop-portal-hyprland
```
or, for -git:
```plain
yay -S xdg-desktop-portal-hyprland-git
```

{{< /tab >}}
{{< tab "Gentoo" >}}
## Unmask dependencies
### /etc/portage/profile/package.unmask
```plain
dev-qt/qtbase
dev-qt/qtwayland
dev-qt/qtdeclarative
dev-qt/qtshadertools
```

## Apply necessary useflags
### /etc/portage/package.use
```plain
dev-qt/qtbase opengl egl eglfs gles2-only
dev-qt/qtdeclarative opengl
sys-apps/xdg-desktop-portal screencast
```

## Unmask dependencies and xdph
### /etc/portage/package.accept_keywords
```plain
gui-libs/xdg-desktop-portal-hyprland 
dev-qt/qtbase
dev-qt/qtwayland
dev-qt/qtdeclarative
dev-qt/qtshadertools
```

btw those are the useflags that I have tested, you could also test others.

## Installation
```sh
eselect repository enable guru
emaint sync -r guru
emerge --ask --verbose gui-libs/xdg-desktop-portal-hyprland
```

{{< /tab >}}
{{< tab "Manual" >}}
See [The Github repo's readme](https://github.com/hyprwm/xdg-desktop-portal-hyprland).

{{</ tab >}}

{{< /tabs >}}

{{< hint type=tip >}}
XDPH doesn't implement a file picker. For that, I recommend installing `xdg-desktop-portal-gtk` alongside XDPH.
{{< /hint >}}

## Usage

Should start automatically.

The most basic way of telling everything is OK is by trying to screenshare anything, or
open OBS and select pipewire source. If XDPH is running, a qt menu will pop up asking you
what to share.

If it doesn't, and you get e.g. slurp, then XDPW is launching. In that case, try removing XDPW.

XDPH will work on other wlroots compositors, but features available only on Hyprland will not work
(e.g. window sharing)

For a nuclear option, you can use this script and `exec-once` it:
```sh
#!/usr/bin/env bash
sleep 1
killall -e xdg-desktop-portal-hyprland
killall -e xdg-desktop-portal-wlr
killall xdg-desktop-portal
/usr/lib/xdg-desktop-portal-hyprland &
sleep 2
/usr/lib/xdg-desktop-portal &
```
adjust the paths if incorrect.

## Share picker doesn't use the system theme

Try one or both:
```sh
dbus-update-activation-environment --systemd --all
systemctl --user import-environment QT_QPA_PLATFORMTHEME
```

If it works, add it to your config in an `exec-once`.

## Using the KDE file picker with XDPH

XDPH does not implement a file picker and uses the GTK one as a fallback by default (see `/usr/share/xdg-desktop-portal/hyprland-portals.conf`). If you want to use the KDE file picker but let XDPH handle everything else, create a file `~/.config/xdg-desktop-portal/hyprland-portals.conf` with the following content:
```properties
[preferred]
default=hyprland;gtk
org.freedesktop.impl.portal.FileChooser=kde
```
You can read more about this in the [xdg-desktop-portal documentation in the Arch Wiki](https://wiki.archlinux.org/title/XDG_Desktop_Portal). Note that some applications like Firefox might require additional configuration to use the KDE file picker.

## Debugging

If you get long app launch times, or screensharing does not work, consult the logs.

`systemctl --user status xdg-desktop-portal-hyprland`

if you see a crash, it's most likely you are missing `qt6-wayland` and/or `qt5-wayland`.